Electric-current collector-ring.



No. 793,593. PATENTED JUNE 27, 1905.

H. A. KNOENER. I

ELECTRIC CURRENT COLLECTOR RING. APPLIGATION FILED 313. 20. 1905.

2 sums-slum: 1.

W'itne sees Inventor, W 7%4Wfl Hermann/4162031231;

No. 798.593. PATENTED JUNE 27, 1905. H. A. KNOBNER.

ELECTRIC CURRENT COLLECTOR RING.

-APPLICATION FILED FEB.20,1905.

Witnesses;

WMQ Z Aifarne UNITED STATES Patented June 27, 1905.

PATENT OFFICE.

HERMANN A. KNOENER, EAST ORANGE, NEW JERSEY, ASSIGNOR TOCROOKER-VVHEELER COMPANY, OF AMPERE, NEW JERSEY, A CORPO- RATION OF NEWJERSEY.

ELECTRIC-CURRENT COLLECTOR-RING.

SPECIFICATION forming part of Letters Patent N 0. 793,593, dated June27, 1905.

Application filed February 20, 1905. Serial No, 246,372.

To all whom, it may concern:

Be it known that I, HERMANN A. KNOENER, a citizen of the United Statesof America, and a resident of East Orange, county'of Essex,

5 and State of New Jersey, have invented certain new and usefulImprovements in Electric- Gurrent Collector-Rings, of which thefollowing is a specification.

This invention relates to improvements in the construction of collectingdevices for various types of alternating-current machines from whichbrushes take ofi' or supply current to the machine.

The novel elements of the construction reside particularly in thecombined insulating and supporting connections between an annularsupporting member and a collector-ring and the relation of thesupporting connections to these parts, as hereinafter claimed.

: Other novel features reside in the form of the annular supportingmember, as hereinafter claimed.

The object of this invention is to provide a form of collecting devicethe parts of which 5 are easily constructed and readily assembled and inwhich the supporting member and collector-ring are firmly connectedmechanically through insulating connections and held in true concentricrelation the one to the other 5 with a common axis and at the same timespaced apart to insure adequate insulation and ventilation.

In the accompanying two sheets of drawings, which form part of thisapplication,

5 5 Figure 1 is a face view of a collecting device embodying myinvention. Fig. 2 is an edge view of the device. Fig. 3 is asectionthrough the device on the line III III of Fig. 1. Fig. 4 is an enlargedsection through one side of i the device on the line 1V IV of Fig. 1.

An annular supporting member or hub A, which is conveniently made ofcast-iron, has the general form of a circular band or rim o with tworows of inwardly-projecting lugs Z Z,

i5 one row being along each edge of the rim.

The inner ends of the lugs are bored or faced to a cylindrical surfaceand adapted to bear on the shaft of the armature by which the collectingdevice is supported. One of the lugs is drilled radially and tapped fora setscrew 8 to secure the device to the armatureshaft. The supportingmember is in two parts, meeting on a plane through the axis on the line00 m, and the two parts are held together by bolts 1) b. As illustrated,two collector-rings B B are carried by the supporting member, and undereach ring in the supporting member is a row of mortises or cylindricalpockets which receive porcelain plugs P P. Type-metal z, is run betweenthe shanks of the plugs and the walls of the pockets to secure the plugstherein. The porcelain plugs are formed with holes or pockets sunk intheir heads in line with their shanks, and metal studs or pins R R areset in the holes in the porcelain plugs and held in place by typemetalEach collector-ring surrounds the supporting member directly over one ofthe rows of pockets in the supporting member and the porcelain plugs andstuds supported in the pockets. Each collector-ring has a groove 1:,turned in its inner periphery, which is engaged by and supported on theends of the studs. A small pin 10 is set in the end of one stud in eachrow and engages a hole drilled in the bottom of the groove to keep thering from circumferential displacement with respect to the supportingmember. The rings are each in two parts and connected at diametricallyopposite points by rabbet joints j j with bolts 6 b. Each ring isprovided with a'flat spot in each half on the inner side, to which thelead-wires 'w w are attached.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a collecting device, an annular supporting member having mortisesin the exterior periphery, insulating-plugs set in the mortises,outwardly-projecting metal studs set in the insulating-plugs, and acollectorring having a groove in its inner periphery which is engaged byand supportedonthe ends of. the studs, substantiallyas described.

2. In a collecting device, an annular supporting member having;inwardly-projecting lugs the inner ends of which form parts of acylindrical surface adapted to bear on I an armature-shaft, acollector-ring concentric with and exterior to the supporting member,

and insulating supporting connections be- 1 tween the supportingmemberand: the collector-ring,- substantiallyias described.

Signed at East Orange, New Jersey, this 17th day of February, 1905.

I HERMANN A. KNOENER. MT-itnesses:

EDWIN R. DoUeLAs, "RUSSELL GnCoRY.

